Having trouble searching

I am having an problem searching. When i search, i get this:

Code:

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Fatal error:  Allowed memory size of 33554432 bytes exhausted at (null):0 (tried to allocate 35 bytes) in /home/httpd/vhosts/petoftheday.com/httpdocs/talk/search.php on line 979

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. Can anyone help me?

Try being more specific with your search - even narrow it down to a certain timeframe if possible - that lessens the load on the server.